The NFS daemon must be disabled unless required.

From Apple OS X 10.10 (Yosemite) Workstation Security Technical Implementation Guide

Part of SRG-OS-000095

Associated with: CCI-000381

SV-74001r2_rule The NFS daemon must be disabled unless required.

Vulnerability discussion

If the system does not require access to NFS (Network File System) file shares or is not acting as an NFS server, then support for NFS is non-essential and NFS services must be disabled. NFS is a network file system protocol supported by Unix-like operating systems. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.

Check content

If the NFS daemon is required, this is not applicable. To check if the NFS daemon is disabled, use the following command: sudo launchctl print-disabled system | grep com.apple.nfsd If the results do not show the following: "com.apple.nfsd" => true this is a finding.

Fix text

To disable the 'NFS' daemon, run the following command: sudo launchctl disable system/com.apple.nfsd The system may need to be restarted for the update to take effect.

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